Lens assembly and electronic device including the same

Abstract

According to an embodiment of the present disclosure, an optical device includes: a lens assembly in which a plurality of lenses are arranged along an optical axis direction from an object side to an image side; and a lens barrel at least partially surrounding the lens assembly. Among a plurality of lenses included in a lens assembly, height of at least one lens among lenses located between first and last lenses from the object side from a starting point of a non-effective diameter of the lens to a starting point of a seating surface of the lens and portion (outer diameter) of the lens adjacent to an inner surface of a lens barrel from the starting point of the non-effective diameter of the lens The ratio of the distances may exceed 0.5. The lens assembly may be varied according to embodiments, and other variations in lens assemblies according to embodiments and electronic devices including the lens assemblies may also be provided.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to, for example, a lens assembly and an electronic device including the lens assembly. Background Art

[0002] Optical devices such as cameras capable of capturing images or videos have been widely used. Conventionally, film-type optical devices have been dominant, but video cameras or digital cameras with solid-state image sensors such as charge coupled devices (CCDs) or complementary metal oxide semiconductors (CMOSs) have recently become popular. Optical devices equipped with solid-state image sensors (CCDs or CMOSs) can easily store, copy, and move images compared to film-type optical devices, and are therefore gradually replacing film-type optical devices.

[0003] In order to obtain high-quality images and / or videos, the optical device may include an optical system including a lens assembly including a plurality of lenses and an image sensor having a large number of pixels. The lens assembly may have, for example, a low aperture number (F value) and small aberrations, thereby enabling high-quality (high-resolution) images and / or videos to be obtained. In order to obtain a low aperture number (F value) and small aberrations, in other words, to obtain high-resolution and bright images, a plurality of lenses need to be combined.

[0004] The optical device may include a lens assembly, a film mask disposed between the lenses as an auxiliary member combined with the lens assembly, and a spacer for supporting at least a portion of the lens. In addition, the optical device may include a lens barrel configured to surround at least a portion of the lens, the film mask and / or the spacer so that they are placed thereon. The lens assembly and the auxiliary member may be provided by an optical design process to meet the internal / external quality of the optical device, the performance of the optical device, and / or the molding processability.

[0005] The above information may be provided as related art to assist in understanding the present disclosure. No claim or determination is made as to whether any of the above description is available as prior art related to the present disclosure. Summary of the invention

[0006] Technical Solution

[0007] According to one embodiment of the present disclosure, an optical device is provided. The optical device may include a lens barrel and a lens assembly, wherein the lens assembly has a plurality of lenses arranged from an object side toward an image side along an optical axis direction, wherein at least one lens of the plurality of lenses included in the lens assembly may satisfy the following [Formula 1].

[0008] [Formula 1]

[0009] H1 / H2>0.5.

[0010] In [Formula 1], H1 represents the height from the start point of the non-effective diameter to the start point of the seating surface, and H2 represents the height from the start point of the non-effective diameter to the portion in contact with the inner surface of the lens barrel.

[0011] According to one embodiment of the present disclosure, an optical device is provided. The optical device may include a lens barrel and a lens assembly, wherein the lens assembly has a plurality of lenses arranged from an object side toward an image side along an optical axis direction, wherein at least one lens of the plurality of lenses included in the lens assembly may satisfy the following [Formula 2].

[0012] [Formula 2]

[0013] H2 / D1≥0.23.

[0014] In [Formula 2], H2 represents the height from the start point of the non-effective diameter to the portion in contact with the inner surface of the lens barrel, and D1 represents the depth from the start point of the non-effective diameter to the start point of the seating surface of the lens.

[0015] According to an embodiment of the present disclosure, an optical device is provided. The electronic device may include a lens barrel and a lens assembly having a plurality of lenses arranged from an object side toward an image side along an optical axis direction, wherein at least one lens of the plurality of lenses included in the lens assembly may satisfy the following [Formula 3].

[0016] [Formula 3]

[0017] D3 / D2>1.65.

[0018] In [Formula 3], D2 represents the thickness between the starting point of the non-effective diameter and the mounting surface of the lens, and D3 represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Regarding embodiments of the present disclosure, the above-mentioned aspects or other aspects and configurations and / or advantages thereof may become more apparent through the following detailed description with reference to the accompanying drawings.

[0020] Figure 1 is a view showing a lens assembly according to some embodiments.

[0021] Figure 2 is a view showing a lens assembly according to an embodiment of the present disclosure.

[0022] Figure 3 is a view showing a lens assembly according to an embodiment of the present disclosure.

[0023] Figure 4is a view showing a lens assembly satisfying a first formula according to an embodiment of the present disclosure.

[0024] Figure 5 is a view showing a lens assembly satisfying the second formula according to an embodiment of the present disclosure.

[0025] Figure 6 is a view showing a lens assembly satisfying the third formula according to an embodiment of the present disclosure.

[0026] Figure 7 is a block diagram of an electronic device in a network environment according to various embodiments of the present disclosure. DETAILED DESCRIPTION

[0027] Recently, due to the increase in the price of auxiliary materials, the problem of cost reduction has arisen, and now it is being considered to remove auxiliary materials such as spacers while maintaining quality in order to reduce prices. However, the function of the spacer is to adjust the amount of light passing through the light cutout and to support at least a part of the lens. Therefore, the removal of the spacer may cause glare, thereby reducing its product quality.

[0028] Therefore, various embodiments of the present disclosure are directed to providing a lens assembly capable of preventing and / or reducing glare even if a spacer is removed, and an optical device and / or an electronic device including the same.

[0029] Hereinafter, various embodiments of the present disclosure will be described with reference to the accompanying drawings.

[0030] For example, the electronic device 1 according to an embodiment of the present disclosure may include at least one of a smartphone, a tablet PC, a mobile phone, a video phone, an e-book reader, a desktop PC, a laptop PC, a netbook computer, a workstation, a server, a PDA, a portable multimedia player (PMP), an MP3 player, a medical device, a camera, or a wearable device. The wearable device may include at least one of an accessory type (e.g., a watch, a ring, a bracelet, an anklet, a necklace, glasses, contact lenses, or a head-mounted device (HMD)), a textile or clothing integrated type (e.g., electronic clothing), a body wear type (e.g., a skin pad or a tattoo), or a bio-implantable circuit. For example, in some embodiments, the electronic device may include a television, a digital video disc (DVD) player, an audio, a refrigerator, an air conditioner, a cleaner, an oven, a microwave oven, a washing machine, an air cleaner, a set-top box, a home automation control panel, a security control panel, a media box (e.g., a Samsung HomeSync TM , Apple TV TM or Google TV TM ), game consoles (such as Xbox TMor PlayStation TM ), at least one of an electronic dictionary, an electronic key, a camera or an electronic photo frame.

[0031] In an embodiment, the electronic device 1 may include various types of medical devices (e.g., various types of portable medical measuring devices (blood sugar monitoring devices, heart rate monitoring devices, blood pressure measuring devices, body temperature measuring devices, etc.), magnetic resonance angiography (MRA) machines, magnetic resonance imaging (MRI) machines, computed tomography (CT) machines, or ultrasound machines, etc.), navigation devices, global navigation satellite systems (GNSS), event data recorders (EDRs), flight data recorders (FDRs), vehicle infotainment devices, electronic devices for ships (e.g., navigation devices for ships, gyrocompasses, etc.), avionics devices, security devices, car hosts, home or industrial robots, drones, automated teller machines (ATMs) in banks, point of sale (POS) systems in stores, or at least one of Internet of Things devices (e.g., light bulbs, various types of sensors, sprinklers, fire alarms, thermostats, street lights, toasters, sporting goods, hot water tanks, heaters, boilers, etc.). According to one embodiment, the electronic device may include at least one of a part of furniture or a building / structure, an electronic board, an electronic signature receiving device, a projector, or various types of measuring instruments (such as water meters, electricity meters, gas meters, and radio wave meters, etc.). In various embodiments, the electronic device may be flexible, or may be a combination of two or more of the above-mentioned various devices. The electronic device 1 according to various embodiments of the present disclosure is not limited to the above-mentioned devices. In various embodiments of the present disclosure, the term "user" may refer to a person using an electronic device or a device using an electronic device (such as an artificial intelligence electronic device). The electronic device according to an embodiment of the present disclosure is not limited to the above-mentioned devices.

[0032] According to an embodiment, as a representative example of the electronic device 1 , an optical device such as a camera module may be included therein, and the following description may be based on the assumption that the lens assembly 10 is included in the optical device as an embodiment.

[0033] In describing the embodiments of the present disclosure, some numerical values ​​may be given, but it should be noted that these numerical values ​​do not limit the embodiments of the present disclosure unless stated in the claims.

[0034] Figure 1 : are views showing lens assemblies according to some embodiments (comparative embodiments). Figure 2 is a view showing a lens assembly according to an embodiment of the present disclosure.

[0035] Reference Figure 1 and Figure 2, the lens assembly 10 of the present disclosure may include a plurality of lenses (eg, L1 , L2 , L3 , and L4 ) and an image sensor (not shown).

[0036] According to one embodiment, an image sensor (not shown) may be mounted on the electronic device 1. An optical device including a lens assembly 10 (which includes a plurality of lenses (e.g., L1, L2, L3, and L4)) may be mounted to the electronic device 1 on which the image sensor is mounted. For example, when describing an embodiment of the present disclosure, the image sensor (not shown) may be omitted. The image sensor (not shown) may be used by being mounted on the electronic device 1 on which the lens assembly 10 is mounted. According to one embodiment, the image sensor (not shown) may be a sensor mounted on a circuit board (not shown) or the like and arranged in a state aligned on the optical axis OI, and may react to light. For example, the image sensor (not shown) may include a sensor such as a complementary metal oxide semiconductor (CMOS) image sensor or a charge coupled device (CCD). The image sensor is not limited thereto, and may include, for example, various devices for converting an image of an object into an electrical video signal. The image sensor may detect contrast information, grayscale ratio information, color information, etc. of an object from light passing through a plurality of lenses (e.g., L1, L2, L3, and L4) to obtain an image of the object.

[0037] According to one embodiment, the lens assembly 10 may have an optical axis OI from the object (or external object) O side toward the image I side. Hereinafter, when describing the configuration of each lens, for example, the object side may represent the direction in which the object is located, and the image side may represent the direction in which the imaging surface on which the image is formed is located. In addition, for example, the "surface" of the lens facing the object side may be the surface on the side where the object O is located relative to the optical axis OI, and may represent the left surface (or front surface) of the lens in the drawings according to the embodiments of the present disclosure. In addition, the "surface" of the lens facing the image side may be the surface on the side where the imaging surface of the image I is located with respect to the optical axis OI, and may represent the right surface (or rear surface) of the lens in the drawings. Here, for example, the imaging surface of the image I may be a portion on which an image capture device or an image sensor is provided to form an image.

[0038] With respect to at least one lens among the plurality of lenses included in the lens assembly 10, the object O side viewed along the optical axis OI may be defined as facing the first direction, and the image I side viewed along the optical axis OI may be defined as facing the second direction. According to one embodiment, in the case where a lens (e.g., the first lens L1) includes a surface facing the object O side, the surface facing the object O side may be referred to as facing the first direction. In addition, in the case where a lens (e.g., the first lens L1) includes a surface facing the image I side, the surface facing the image side may be referred to as facing the second direction. That is, when the lens is included in an optical device, the lens may have a surface intended to face the object O, and when the lens is included in the optical device, the lens may have a surface intended to face the image I. Similarly, the lens assembly 10 may include a plurality of lenses arranged such that each lens surface intended to face the object O faces the first direction and such that each lens surface intended to face the image faces the second direction.

[0039] A plurality of lenses (e.g., L1, L2, L3, and L4) and an image sensor may be arranged in a state of being aligned on the optical axis OI. Here, the plurality of lenses "aligned on the optical axis OI" may mean that the centers of the plurality of lenses are located on the optical axis OI in a state where the lenses are oriented in a first direction or a second direction. Figure 1 and Figure 2 , showing that four lenses are aligned on the optical axis OI. However, this is only one embodiment and does not limit the scope of the present disclosure. The lens assembly 10 of the present disclosure may include at least three lenses. In the following figures, although the lens assembly 10 including four lenses is mainly described, it should be noted that, unlike the figures shown, the lens assembly may also include three lenses or five or more lenses.

[0040] Reference Figure 1 and Figure 2 For example, the lens assembly 10 according to the embodiment may include a plurality of lenses (eg, L1, L2, L3, and L4) arranged in the direction of the optical axis OI (eg, Figure 1 The lens barrel 20 includes a first lens L1, a second lens L2, a third lens L3, and a fourth lens L4. According to one embodiment, the first lens L1 may include a surface S1 facing the object side and a surface S2 facing the image side, and a portion of the surface S1 facing the object side may be exposed to the outside through the opening of the lens barrel 20. The second lens L2 may include a surface S3 facing the object side and a surface S4 facing the image side. The third lens L3 may include a surface S5 facing the object side and a surface S6 facing the image side. The fourth lens L4 may include a surface S7 facing the object side and a surface S8 facing the image side.

[0041] When describing a plurality of lenses (e.g., L1, L2, L3, and L4) according to an embodiment, hereinafter, among portions of each lens, a portion close to the optical axis OI may be referred to as a "central portion (chief portion)", and a portion far from the optical axis OI (or close to the edge of the lens) may be referred to as a "marginal portion". For example, the main portion of the first lens L1 may be a portion intersecting the optical axis OI. For example, the marginal portion of the first lens L1 may be a portion spaced apart from the optical axis by a predetermined distance. For example, the marginal portion may include an end portion of the lens farthest from the optical axis OI of the lens.

[0042] According to one embodiment, the optical device and / or the electronic device 1 may further include a film mask 11 on an edge portion of the lens. The film mask 11 may be used as an aperture stop (determining the aperture number (F-no) as an entrance pupil) or a field stop (adjusting the size of the ambient light flux to adjust the ambient light amount ratio and / or aberration) for adjusting the amount of light entering the lens. For example, an edge portion of the surface S2 of the first lens L1 facing the image side and an edge portion of the surface S3 of the second lens L2 facing the object side may face each other, and the film mask 11 may be disposed between an edge portion of the surface S2 of the first lens L1 facing the image side and an edge portion of the surface S3 of the second lens L2 facing the object side. An edge portion of the surface S4 of the second lens L2 facing the image side and an edge portion of the surface S5 of the third lens L3 facing the object side may face each other, and the film mask 11 may be disposed between an edge portion of the surface S4 of the second lens L2 facing the image side and an edge portion of the surface S5 of the third lens L3 facing the object side. In addition, an edge portion of the surface S6 of the third lens L3 facing the image side and an edge portion of the surface S7 of the fourth lens L4 facing the object side may face each other, and the film mask 11 may also be disposed between an edge portion of the surface S6 of the third lens L3 facing the image side and an edge portion of the surface S7 of the fourth lens L4 facing the object side. In some embodiments, the film mask 11 may not be included.

[0043] The optical device may include a lens barrel 20. The lens barrel 20 may be formed to at least partially surround the lens assembly 10. The lens barrel 20 may be formed to at least partially surround the lens assembly 10 and the film mask 11. The lens barrel 20 may be used to stably place the lens assembly 10 and (optionally) the film mask 11, block external light, prevent damage to the electronic device 1 when it falls, and prevent foreign matter from flowing into it.

[0044] In addition, refer to Figure 1, the electronic device 1 according to the comparative embodiment may further include a spacer 12. The spacer 12 may be used to support the lens. The spacer 12 may be provided between an edge portion of one lens and an edge portion of another adjacent lens. The spacer 12 may be used to prevent the lens from bending and also to adjust the amount of light. Figure 1 The spacer 12 is shown to be disposed between the third lens L3 and the fourth lens L4. However, the spacer 12 may include a hard metal material to maintain stability between the surfaces of the lenses. Therefore, the spacer may have a considerable weight and may also have a considerable thickness. In order to achieve miniaturization and / or weight reduction of an electronic device including a lens assembly, it may be considered to remove the spacer 12. Therefore, in the present disclosure, as Figure 2 As shown, a lens assembly 10 may be provided from which the spacers are removed.

[0045] According to an embodiment of the present disclosure, a lens assembly 10 may be provided from which a spacer is removed, and the lens assembly 10 may also be provided to prevent and / or reduce glare, which would not occur in the presence of the spacer 12 but may occur when the spacer 12 is removed. That is, the removal of the spacer 12 may introduce or increase glare while the spacer 12 may be removed to miniaturize and / or reduce the weight of the lens assembly 10. To this end (that is, to allow the spacer to be removed while preventing / minimizing glare), the electronic device 1 according to an embodiment of the present disclosure may include at least one lens including a rib.

[0046] Figure 3 is a view showing a lens assembly according to an embodiment of the present disclosure. Figure 3 An enlarged view of a rib formed to prevent glare of a lens 10 included in a lens assembly 10 according to an embodiment of the present disclosure is included.

[0047] By replacing the spacers, the glare that may occur in the lens assembly can be caused by various reasons. For example, if the spacers are replaced by including rib structures in the lens, there may be glare caused by light that is reflected within the effective diameter of the lens and then reflected onto its non-effective diameter (such as ribs). Glare may also be caused by light that is refracted and reflected after passing through the lens, glare may also be caused by light that is totally reflected inside the lens, and glare may also be caused by light leakage between lenses.

[0048] exist Figure 3In the drawings and the drawings below, with respect to a lens including a rib structure (which may be simply referred to as a "rib" hereinafter) to prevent and / or reduce the above-mentioned glare, although the third lens (that is, the third lens L3) from the object O side of the lens assembly 10 including four lenses is described as an example, it should be noted that the scope of the present disclosure is not limited to this. Among the multiple lenses included in the lens assembly 10, the lens including a rib for preventing and / or reducing glare may be a lens disposed between the first lens (e.g., the first lens L1) closest to the object side and the last lens (e.g., the fourth lens L4) farthest from the object side. For example, in Figure 3 and the accompanying drawings below, the rib for preventing and / or reducing glare may be formed not only on the third lens L3, but also on the second lens L2. In an embodiment, the rib for preventing and / or reducing glare may be formed on both the second lens L2 and the third lens L3. In the present disclosure, in the case where the lens assembly includes three lenses, the rib for preventing and / or reducing glare may be formed on the second lens from the object side (that is, the second lens L2). In the case where the lens assembly includes five or more lenses, at least one of the second lens from the object side, the third lens from the object side, and the fourth lens from the object side may correspond to a lens on which a rib may be formed. In the case where the lens assembly includes six or more lenses, at least one of the second lens from the object side, the third lens from the object side, the fourth lens from the object side, and the fifth lens from the object side may correspond to a lens on which a rib for preventing and / or reducing glare may be formed. In addition, even in the case where the lens assembly includes seven or more lenses, a plurality of lenses arranged between the first lens from the object side and the last lens from the object side may correspond to lenses on which ribs for preventing and / or reducing glare may be formed. Hereinafter, for the convenience of description, as an example, it will be described that the ribs are formed only on the third lens L3 among the four lenses.

[0049] Reference Figure 3, at least one of the plurality of lenses included in the lens assembly (e.g., the third lens L3) may include a rib having the following shape: a first placement surface extending from the starting point of the non-effective diameter of the at least one lens to the inner surface of the lens barrel 20 and the surface S6 facing the object side of another adjacent lens (e.g., the surface S7 of the fourth lens L4). For example, the rib may extend from the starting point of the non-effective diameter to the inner surface of the lens barrel 20. For example, the rib may include a first placement surface corresponding to the placement surface of the next lens in the lens assembly in the first direction (e.g., the first placement surface may be a part of the surface S5) and a second placement surface corresponding to the placement surface of the next lens in the lens assembly in the second direction (e.g., the second placement surface may be a part of the surface S6). Here, the non-effective diameter of the lens may represent a portion that does not correspond to the effective diameter of the lens. The effective diameter of the lens may represent a distance in a direction perpendicular to the optical axis OI passing through the center of the lens, which corresponds to the actual area of ​​the lens through which the light passes, and the non-effective diameter of the lens may represent the remaining portion of the lens, which extends from the end portion of the effective diameter of the lens to the lens barrel. For example, the effective diameter of the lens may be the diameter of the central portion of the lens, and the ineffective diameter may be a portion of the lens diameter corresponding to a peripheral portion of the lens surrounding the central portion of the lens. For example, the effective diameter / central portion of the lens may be a portion of the lens that provides an optical effect of the lens (e.g., a portion through which light is intended to pass when imaging), and the ineffective diameter / peripheral portion of the lens may be a portion that is not intended to provide an optical effect (e.g., a portion through which light is not intended to pass when imaging). For example, the ineffective diameter / peripheral portion of the lens may be a portion that provides a structural or support effect, such as allowing the lens to be supported / retained in a lens assembly.

[0050] The lens L3 including the rib may include at least one structure of a groove, a protrusion, an inclined surface, a curved surface, and a step on at least one of the surface S5 facing the object side and the surface S6 facing the image side. Figure 3 As shown in the enlarged view of , the third lens L3 may include a structure including a groove 15, inclined surfaces 16 and 18, and a step 17. In addition, although not shown in the drawings, the lens L3 including the rib may further include a structure including a curved surface or a protrusion.

[0051] According to an embodiment, the lens L3 including the ribs may also be formed so that the portion of the surface S6 facing the image side has an angle of 10 degrees or less relative to the angle of the relative portion of the surface S5 facing the object side. In this case, the point at which the angle of the surface S6 facing the image side relative to the surface S5 facing the object side is measured may be the starting point of the non-effective diameter on the surface S6. That is, the point on the diameter (where the portion of the surface S6 facing the image side has an angle of 10 degrees or less relative to the relative portion of the surface S5 facing the object side) may be the boundary between the effective diameter and the non-effective diameter on the surface S6. It will be understood that although the angle between the portions at the optical axis (or near the optical axis) may also be 10 degrees or less, such a point will not be the starting point of the non-effective diameter because the portion near the optical axis is included in the effective diameter. That is, the lens may include a first central portion through which the optical axis passes, and in the first central portion, the portion of the surface S6 facing the image side has an angle of 10 degrees or less relative to the angle of the relative portion of the surface S5 facing the object side. The lens may include a second central portion surrounding the first central portion, in which a portion of the surface S6 facing the image side in the second central portion has an angle greater than 10 degrees relative to an angle of an opposite portion of the surface S5 facing the object side. The lens may include a first peripheral portion surrounding the second central portion, in which a portion of the surface S6 facing the image side in the first peripheral portion has an angle of 10 degrees or less relative to an angle of an opposite portion of the surface S5 facing the object side. The point on the diameter (where the second central portion ends and the first peripheral portion begins) may be the starting point of the non-effective diameter. That is, the effective diameter may be the diameter of the central portion including the first central portion and the second central portion, and the non-effective diameter may be the remaining diameter outside the central portion including the first peripheral portion.

[0052] In the lens L3 including the rib, the starting point of the ineffective diameter may be different depending on whether the surface S5 faces the object side or the surface S6 faces the image side. That is, the starting point of the ineffective diameter on the surface S5 may be defined differently from the starting point of the ineffective diameter on the surface S6. Figure 3, the lens L3 including the ribs may include a first mounting surface L3a (or front mounting surface) corresponding to (e.g., for supporting) the second lens L2 on the surface S5 facing the object side and a second mounting surface L3b (or rear mounting surface) corresponding to (e.g., for supporting) the fourth lens L4 on the surface S6 facing the image side. For example, the first (front) mounting surface L3a of the lens L3 may correspond to the (rear) mounting surface of the second lens L2, and the second (rear) mounting surface L3b may correspond to the (front) mounting surface of the fourth lens L4. For example, the first mounting surface L3a on the lens L3 may be parallel to the corresponding portion of the surface of the second lens L2 and may be configured to contact the corresponding portion of the surface of the second lens L2, or to contact the film mask 11 that is also in contact with the corresponding portion of the surface of the second lens L2. For example, the second mounting surface L3b on the lens L3 may be parallel to the corresponding portion of the surface of the fourth lens L4 and may be configured to contact the corresponding portion of the surface of the fourth lens L4, or to contact the film mask 11 that is also in contact with the corresponding portion of the surface of the fourth lens L4.

[0053] The second mounting surface L3b may include a starting point L3b-1 of the second mounting surface L3b (i.e., a point where the second mounting surface starts on the diameter) and an end point L3b-2 of the second mounting surface L3b (i.e., a point where the second mounting surface ends on the diameter). In addition, the lens L3 including the rib may include a portion L3c in contact with the inner surface of the lens barrel 20. The first mounting surface L3a may face a portion of the non-effective diameter of the second lens L2 (e.g., the mounting surface L2b of the second lens L2), and the second mounting surface L3b may face a portion of the non-effective diameter of the fourth lens L4 (e.g., the mounting surface L4a of the fourth lens L4). The lens L3 including the rib may be configured so that the distance from the optical axis OI to the second mounting surface L3b is longer than the distance from the optical axis OI to the first mounting surface L3a. The starting point of the non-effective diameter may be the first starting point P1 in the surface S5 facing the object side, and may be the second starting point P2 in the surface S6 facing the image side. In this case, the first starting point P1 and the second starting point P2 may be located at different distances from each other in a direction perpendicular to the optical axis OI. The first starting point P1 may be a point in the first mounting surface L3a that is closest to the optical axis OI, and the second starting point P2 may be an intermediate point between the second mounting surface L3b and the optical axis OI. According to an embodiment, a point at which the angle of the surface S6 facing the image side relative to the surface S5 facing the object side as described above is measured to be 10 degrees or less may correspond to the second starting point P2. The starting point L3b-1 of the second mounting surface L3b may be referred to as the reference numeral "P3" below. The starting point P3 of the second mounting surface L3b may be formed at a position farther away from the optical axis OI than the first starting point P1 and the second starting point P2.

[0054] In addition, according to an embodiment, the lens L3 including the ribs may have a coated surface formed on at least one of the surface S5 facing the object side and the surface S6 facing the image side. Here, the coated surface may correspond to an anti-reflection (AR) coated surface. By forming the coated surface, its reflectivity can be reduced to less than about 2%, and by performing a corrosion treatment, its surface roughness can be increased to scatter light. In addition, according to an embodiment, the lens L3 including the ribs may subject at least one of the surface S5 facing the object side and the surface S6 facing the image side to a corrosion treatment. By performing the corrosion treatment, the path of the light can be extended.

[0055] According to the embodiment, the shapes of the multiple lenses (e.g., L1, L2, L3, and L4) of the present disclosure, the distance between the lenses, their radius of curvature, their thickness, their total track length (TTL), their focal length, etc. can be freely configured unless otherwise specified. Figure 3 The lens L3 having ribs formed thereon is shown (which is formed to have a shape in which a portion of the optical axis of the surface S5 facing the object side is concave and a portion of the optical axis of the surface S6 facing the image side is convex), but the shape of the lens may be changed according to the embodiment without limiting the scope of the various embodiments of the present disclosure. The shapes of the multiple lenses (e.g., L1, L2, L3, and L4) of the present disclosure, the distance between the lenses, their radius of curvature, their thickness, their total optical length (TTL), their focal length, etc. may be variously designed according to the optical characteristics (e.g., aberration characteristics, wide-angle characteristics, and / or brightness characteristics) required for the lens assembly 10.

[0056] Figure 4 is a view showing a lens assembly 10 satisfying a first formula according to an embodiment of the present disclosure. Figure 5 is a view showing a lens assembly 10 satisfying the second formula according to an embodiment of the present disclosure. Figure 6 is a view showing a lens assembly 10 satisfying the third formula according to an embodiment of the present disclosure.

[0057] Reference Figures 4 to 6 According to an embodiment of the present disclosure, an optical device may provide a lens assembly capable of preventing and / or reducing glare by satisfying at least one of the following [Formula 1], [Formula 2], and [Formula 3].

[0058] First, refer to Figure 4 , at least one of the plurality of lenses included in the lens assembly (eg, lens L3 having a rib formed thereon) may satisfy the following [Formula 1].

[0059] [Formula 1]

[0060] H1 / H2>0.5.

[0061] In [Formula 1], H1 may represent the height from the starting point of the non-effective diameter to the starting point of the mounting surface (i.e., the distance measured in a direction perpendicular to the optical axis), and H2 may represent the height from the starting point of the non-effective diameter to the portion in contact with the inner surface of the lens barrel. For example, H1 may represent the distance (measured in a direction perpendicular to the optical axis) from a line passing through the starting point of the non-effective diameter (parallel to the optical axis) to a line passing through the starting point on the diameter of the mounting surface (parallel to the optical axis). H2 may represent the distance (measured in a direction perpendicular to the optical axis) from a line passing through the starting point of the non-effective diameter (parallel to the optical axis) to a line passing through a point on the diameter where the lens contacts the inner surface of the lens barrel (parallel to the optical axis). Here, the starting point of the non-effective diameter may include a first starting point P1 of the object side surface S5 of the lens L3 and a second starting point P2 of the image side surface S6 of the lens L3, and H1 and H2 in [Formula 1] may represent the height measured from the second starting point P2 of the image side surface of the lens. In addition, the mounting surface may include a first mounting surface L3a of the object side surface S5 of the lens L3 and a second mounting surface L3b of the image side surface S6 of the lens L3, and H1 in [Formula 1] may represent a height measured from a starting point P3 of the second mounting surface L3b of the image side surface S6 of the lens L3. In combination with [Formula 1], the optical device may include a lens L3 including a rib, wherein a ratio between a height H1 measured from a starting point P2 of a non-effective diameter to a starting point P3 of the mounting surface and a height H2 from a starting point P2 of the non-effective diameter to a portion L3c in contact with the inner surface of the lens barrel (the outer diameter of the lens) exceeds 0.5, thereby preventing and / or reducing glare.

[0062] [Table 1] shows below the ratio between the height H1 measured from the starting point P2 of the non-effective diameter to the starting point P3 of the mounting surface and the height H2 from the starting point P2 of the non-effective diameter to the portion (outer diameter) L3c in contact with the inner surface of the lens barrel, which enables the lens according to various embodiments to prevent and / or reduce glare.

[0063] [Table 1]

[0064]

[0065] As shown in [Table 1], in the case of the first to third embodiments, in a state where the spacer is removed, it is determined that the ratio between the height H1 measured from the starting point P2 of the non-effective diameter to the starting point P3 of the mounting surface and the height H2 from the starting point P2 of the non-effective diameter to the portion (outer diameter) L3c in contact with the inner surface of the lens barrel has a value exceeding 0.5. In contrast, in the case of the fourth to ninth embodiments, it is determined that a spacer is required when the ratio between the height H1 measured from the starting point P2 of the non-effective diameter to the starting point P3 of the mounting surface and the height H2 from the starting point P2 of the non-effective diameter to the portion (outer diameter) L3c in contact with the inner surface of the lens barrel is 0.5 or less. Reference Figure 5 , at least one of the plurality of lenses included in the lens assembly (eg, lens L3 having a rib formed thereon) may satisfy the following [Formula 2].

[0066] [Formula 2]

[0067] H2 / D1≥0.23.

[0068] In [Formula 2], H2 may represent the height from the starting point of the non-effective diameter to the portion in contact with the inner surface of the lens barrel, and D1 may represent the depth from the starting point of the non-effective diameter to the starting point of the placement surface (i.e., the distance measured in a direction parallel to the optical axis). For example, H2 may represent the distance (measured in a direction perpendicular to the optical axis) from a line passing through the starting point of the non-effective diameter (parallel to the optical axis) to a line passing through a point on the diameter where the lens contacts the inner surface of the lens barrel (parallel to the optical axis). D1 may represent the distance (measured in a direction parallel to the optical axis) from a line passing through the starting point of the non-effective diameter (perpendicular to the optical axis) to a line passing through the starting point on the diameter of the placement surface (perpendicular to the optical axis). Here, the starting point of the non-effective diameter may include a first starting point P1 of the object side surface S5 of the lens L3 and a second starting point P2 of the image side surface S6 of the lens L3, and H2 in [Formula 2] may represent the height measured from the second starting point P2 of the image side surface S6 of the lens L3. In addition, the mounting surface may include a first mounting surface L3a of the object side surface S5 of the lens L3 and a second mounting surface L3b of the image side surface S6 of the lens L3, and D1 in [Formula 2] may represent a depth measured from a starting point P2 of the non-effective diameter of the image side surface S6 of the lens L3 to a starting point P3 of the second mounting surface L3b of the image side surface S6 of the lens L3. In combination with [Formula 2], the optical device may include a lens including a rib, wherein a ratio of a depth from the starting point P2 of the non-effective diameter to the mounting surface L3b to a height H2 from the starting point P2 of the non-effective diameter to a portion (outer diameter) L3c in contact with the inner surface of the lens barrel is 0.23 or greater, thereby preventing and / or reducing glare.

[0069] [Table 2] shows below the ratio of the depth from the starting point P2 of the non-effective diameter to the mounting surface L3b relative to the height H2 from the starting point P2 of the non-effective diameter to the portion (outer diameter) L3c in contact with the inner surface of the lens barrel, which enables the lens according to various embodiments to prevent and / or reduce glare.

[0070] [Table 2]

[0071]

[0072]

[0073] As shown in [Table 2], in the case of the first to third embodiments, in the state where the spacer is removed, it is determined that the ratio of the depth from the starting point P2 of the non-effective diameter to the mounting surface L3b relative to the height H2 from the starting point P2 of the non-effective diameter to the portion in contact with the inner surface of the lens barrel (outer diameter) L3c has a value of 0.23 or greater. In contrast, in the case of the fourth to ninth embodiments, it is determined that a spacer is required when the ratio of the depth from the starting point P2 of the non-effective diameter to the mounting surface L3b relative to the height H2 from the starting point P2 of the non-effective diameter to the portion in contact with the inner surface of the lens barrel (outer diameter) L3c is less than 0.23. Reference Figure 6 , at least one of the plurality of lenses included in the lens assembly (eg, lens L3 having a rib formed thereon) may satisfy the following [Formula 3].

[0074] [Formula 3]

[0075] D3 / D2>1.65.

[0076] In [Formula 3], D2 may represent the thickness between the starting point P2 of the non-effective diameter and the mounting surface L3a of the lens L3 (i.e., the distance measured in a direction parallel to the optical axis), and D3 may be the thickness between the first mounting surface L3a of the object side surface S5 of the lens L3 and the second mounting surface L3b of the image side surface S6 of the lens L3. For example, D2 may represent the distance (measured in a direction parallel to the optical axis) from a line passing through the starting point of the non-effective diameter (perpendicular to the optical axis) to a line passing through a point on the diameter and on the mounting surface (perpendicular to the optical axis). D3 may represent the distance (measured in a direction parallel to the optical axis) from a line passing through a point on the diameter and on the first mounting surface (perpendicular to the optical axis) to a line passing through a point on the diameter and on the second mounting surface (perpendicular to the optical axis). Here, the starting point of the non-effective diameter may include the first starting point P1 of the object side surface of the lens and the second starting point P2 of the image side surface of the lens, and D2 and D3 in [Formula 3] may be depths measured from the first starting point P1 of the image side surface of the lens. In combination with [Formula 3], the optical device may include a lens including ribs, wherein the distance D3 between the lens mounting surfaces is greater than the distance D2 between the end portions in the effective diameter of the lens (the distance between the starting points P1 and P2 of the non-effective diameter in the optical axis direction), thereby preventing and / or reducing glare.

[0077] [Table 3] shows below the ratio of the distance D3 between the lens mounting surfaces relative to the distance D2 between the end portions in the effective diameter of the lens (the distance between the starting points P1 and P2 of the non-effective diameter in the optical axis direction), which enables the lens according to various embodiments to prevent and / or reduce glare.

[0078] [Table 3]

[0079]

[0080] As shown in [Table 3], in the case of the first to third embodiments, in the state where the spacer is removed, the ratio between the distance D3 between the lens placement surfaces and the distance D2 between the end portions in the effective diameter of the lens (the distance between the starting points P1 and P2 of the non-effective diameter in the optical axis direction) is determined to have a value exceeding 1.65, which enables the lenses according to various embodiments to prevent and / or reduce glare. In contrast, in the case of the fourth to ninth embodiments, in the case where the ratio between the distance D3 between the lens placement surfaces and the distance D2 between the end portions in the effective diameter of the lens (the distance between the starting points P1 and P2 of the non-effective diameter in the optical axis direction) is determined to have a value of 1.65 or less, a spacer is required.

[0081] according to Figures 4 to 6In the above-mentioned embodiments, the optical device may include a lens assembly that satisfies at least one formula, thereby preventing and / or reducing glare, just as the optical device includes a spacer.

[0082] Figure 7 is a block diagram showing an electronic device 101 in a network environment 100 according to various embodiments. Figure 7 , the electronic device 101 in the network environment 100 may communicate with the electronic device 102 via the first network 198 (e.g., a short-range wireless communication network), or communicate with at least one of the electronic device 104 or the server 108 via the second network 199 (e.g., a long-range wireless communication network). According to an embodiment, the electronic device 101 may communicate with the electronic device 104 via the server 108. According to an embodiment, the electronic device 101 may include a processor 120, a memory 130, an input module 150, a sound output module 155, a display module 160, an audio module 170, a sensor module 176, an interface 177, a connection terminal 178, a haptic module 179, a camera module 180, a power management module 188, a battery 189, a communication module 190, a user identification module (SIM) 196, or an antenna module 197. In some embodiments, at least one of the above components (e.g., the connection terminal 178) may be omitted from the electronic device 101, or one or more other components may be added to the electronic device 101. In some embodiments, some of the above-described components (eg, sensor module 176, camera module 180, or antenna module 197) may be implemented as a single integrated component (eg, display module 160).

[0083] The processor 120 may run, for example, software (e.g., program 140) to control at least one other component (e.g., hardware component or software component) of the electronic device 101 connected to the processor 120, and may perform various data processing or calculations. According to one embodiment, as at least part of the data processing or calculation, the processor 120 may store a command or data received from another component (e.g., sensor module 176 or communication module 190) in the volatile memory 132, process the command or data stored in the volatile memory 132, and store the resultant data in the non-volatile memory 134. According to an embodiment, the processor 120 may include a main processor 121 (e.g., a central processing unit (CPU) or an application processor (AP)) or an auxiliary processor 123 (e.g., a graphics processing unit (GPU), a neural processing unit (NPU), an image signal processor (ISP), a sensor hub processor, or a communication processor (CP)) that is operationally independent or combined with the main processor 121. For example, when the electronic device 101 includes a main processor 121 and an auxiliary processor 123, the auxiliary processor 123 may be adapted to consume less power than the main processor 121, or adapted to be dedicated to a specific function. The auxiliary processor 123 may be implemented separately from the main processor 121, or as part of the main processor 121.

[0084] When the main processor 121 is in an inactive (e.g., sleep) state, the auxiliary processor 123 (rather than the main processor 121) may control at least some of the functions or states related to at least one component among the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190), or when the main processor 121 is in an active state (e.g., running an application), the auxiliary processor 123 may control at least some of the functions or states related to at least one component among the components of the electronic device 101 (e.g., the display module 160, the sensor module 176, or the communication module 190) together with the main processor 121. According to an embodiment, the auxiliary processor 123 (e.g., an image signal processor or a communication processor) may be implemented as part of another component (e.g., a camera module 180 or a communication module 190) that is functionally related to the auxiliary processor 123. According to an embodiment, the auxiliary processor 123 (e.g., a neural processing unit) may include a hardware structure dedicated to artificial intelligence model processing. The artificial intelligence model may be generated by machine learning. For example, such learning may be performed by the electronic device 101 where the artificial intelligence is executed or via a separate server (e.g., server 108). The learning algorithm may include, but is not limited to, supervised learning, unsupervised learning, semi-supervised learning, or reinforcement learning, for example. The artificial intelligence model may include multiple artificial neural network layers. The artificial neural network may be a deep neural network (DNN), a convolutional neural network (CNN), a recurrent neural network (RNN), a restricted Boltzmann machine (RBM), a deep belief network (DBN), a bidirectional recurrent deep neural network (BRDNN), or a deep Q network or a combination of two or more thereof, but is not limited thereto. Additionally or alternatively, the artificial intelligence model may include a software structure in addition to a hardware structure.

[0085] The memory 130 may store various data used by at least one component of the electronic device 101 (e.g., the processor 120 or the sensor module 176). The various data may include, for example, software (e.g., the program 140) and input data or output data for commands related thereto. The memory 130 may include a volatile memory 132 or a nonvolatile memory 134.

[0086] The program 140 may be stored as software in the memory 130 , and may include, for example, an operating system (OS) 142 , middleware 144 , or applications 146 .

[0087] The input module 150 may receive commands or data to be used by other components (e.g., the processor 120) of the electronic device 101 from outside (e.g., a user) of the electronic device 101. The input module 150 may include, for example, a microphone, a mouse, a keyboard, a key (e.g., a button), or a digital pen (e.g., a stylus).

[0088] The sound output module 155 can output sound signals to the outside of the electronic device 101. The sound output module 155 may include, for example, a speaker or a receiver. The speaker can be used for general purposes such as playing multimedia or playing records. The receiver can be used to receive incoming calls. Depending on the embodiment, the receiver can be implemented as a separate part from the speaker, or as part of the speaker.

[0089] The display module 160 may visually provide information to the outside of the electronic device 101 (e.g., a user). The display device 160 may include, for example, a display, a holographic device, or a projector, and a control circuit for controlling a corresponding one of the display, the holographic device, and the projector. According to an embodiment, the display module 160 may include a touch sensor adapted to detect a touch or a pressure sensor adapted to measure the strength of a force caused by a touch.

[0090] The audio module 170 may convert sound into an electrical signal, or vice versa. According to an embodiment, the audio module 170 may obtain sound via the input module 150, or output sound via the sound output module 155 or an earphone of an external electronic device (e.g., electronic device 102) directly (e.g., wired) or wirelessly connected to the electronic device 101.

[0091] The sensor module 176 may detect an operating state (e.g., power or temperature) of the electronic device 101 or an environmental state (e.g., a user's state) outside the electronic device 101, and then generate an electrical signal or data value corresponding to the detected state. Depending on the embodiment, the sensor module 176 may include, for example, a gesture sensor, a gyro sensor, an atmospheric pressure sensor, a magnetic sensor, an acceleration sensor, a grip sensor, a proximity sensor, a color sensor, an infrared (IR) sensor, a biometric sensor, a temperature sensor, a humidity sensor, or an illumination sensor.

[0092] The interface 177 may support one or more specific protocols to be used to connect the electronic device 101 directly (e.g., wired) or wirelessly to an external electronic device (e.g., the electronic device 102). According to an embodiment, the interface 177 may include, for example, a high-definition multimedia interface (HDMI), a universal serial bus (USB) interface, a secure digital (SD) card interface, or an audio interface.

[0093] The connection end 178 may include a connector, wherein the electronic device 101 can be physically connected to an external electronic device (e.g., the electronic device 102) via the connector. According to an embodiment, the connection end 178 may include, for example, an HDMI connector, a USB connector, an SD card connector, or an audio connector (e.g., a headphone connector).

[0094] The haptic module 179 may convert the electrical signal into mechanical stimulation (eg, vibration or motion) or electrical stimulation that can be recognized by the user via his sense of touch or kinesthetic sense. According to an embodiment, the haptic module 179 may include, for example, a motor, a piezoelectric element, or an electrical stimulator.

[0095] The camera module 180 may capture still images or moving images. According to an embodiment, the camera module 180 may include one or more lenses, an image sensor, an image signal processor, or a flash.

[0096] The power management module 188 may manage power supply to the electronic device 101. According to an embodiment, the power management module 188 may be implemented as, for example, at least a part of a power management integrated circuit (PMIC).

[0097] The battery 189 may power at least one component of the electronic device 101. According to an embodiment, the battery 189 may include, for example, a non-rechargeable primary battery, a rechargeable secondary battery, or a fuel cell.

[0098] The communication module 190 may support establishing a direct (e.g., wired) communication channel or a wireless communication channel between the electronic device 101 and an external electronic device (e.g., electronic device 102, electronic device 104, or server 108), and perform communication via the established communication channel. The communication module 190 may include one or more communication processors capable of operating independently from the processor 120 (e.g., an application processor (AP)) and supporting direct (e.g., wired) communication or wireless communication. According to an embodiment, the communication module 190 may include a wireless communication module 192 (e.g., a cellular communication module, a short-range wireless communication module, or a global navigation satellite system (GNSS) communication module) or a wired communication module 194 (e.g., a local area network (LAN) communication module or a power line communication (PLC) module). A corresponding one of these communication modules can communicate with an external electronic device via a first network 198 (e.g., a short-range communication network such as Bluetooth, Wireless Fidelity (Wi-Fi) Direct, or Infrared Data Association (IrDA)) or a second network 199 (e.g., a long-range communication network such as a traditional cellular network, a 5G network, a next-generation communication network, the Internet, or a computer network (e.g., a LAN or a wide area network (WAN))). These various types of communication modules can be implemented as a single component (e.g., a single chip), or these various types of communication modules can be implemented as multiple components separated from each other (e.g., multiple chips). The wireless communication module 192 can identify and authenticate the electronic device 101 in a communication network (such as the first network 198 or the second network 199) using user information (e.g., an International Mobile Subscriber Identity (IMSI)) stored in the user identification module 196.

[0099] The wireless communication module 192 can support 5G networks after 4G networks and next-generation communication technologies (e.g., new radio (NR) access technology). NR access technology can support enhanced mobile broadband (eMBB), massive machine type communication (mMTC), or ultra-reliable low-latency communication (URLLC). The wireless communication module 192 can support high-frequency bands (e.g., millimeter wave bands) to achieve, for example, high data transmission rates. The wireless communication module 192 can support various technologies for ensuring performance on high-frequency bands, such as, for example, beamforming, massive multiple-input multiple-output (massive MIMO), full-dimensional MIMO (FD-MIMO), array antennas, analog beamforming, or massive antennas. The wireless communication module 192 can support various requirements specified in the electronic device 101, an external electronic device (e.g., electronic device 104), or a network system (e.g., a second network 199). Depending on the embodiment, the wireless communication module 192 may support a peak data rate for implementing eMBB (e.g., 20 Gbps or greater), loss coverage for implementing mMTC (e.g., 164 dB or less), or U-plane delay for implementing URLLC (e.g., 0.5 ms or less for each of the downlink (DL) and uplink (UL), or 1 ms or less round trip).

[0100] The antenna module 197 may transmit or receive a signal or power to or from the outside of the electronic device 101 (e.g., an external electronic device). According to an embodiment, the antenna module 197 may include an antenna including a radiating element formed of a conductive material or a conductive pattern formed in or on a substrate (e.g., a printed circuit board (PCB)). According to an embodiment, the antenna module 197 may include a plurality of antennas (e.g., an array antenna). In this case, at least one antenna suitable for a communication scheme used in a communication network (such as the first network 198 or the second network 199) may be selected from the plurality of antennas by, for example, the communication module 190 (e.g., the wireless communication module 192). A signal or power may then be transmitted or received between the communication module 190 and the external electronic device via the selected at least one antenna. According to an embodiment, another component (e.g., a radio frequency integrated circuit (RFIC)) other than the radiating element may be additionally formed as part of the antenna module 197.

[0101] According to various embodiments, the antenna module 197 may form a millimeter wave antenna module. According to an embodiment, the millimeter wave antenna module may include a printed circuit board, a radio frequency integrated circuit (RFIC), and a plurality of antennas (e.g., array antennas), wherein the RFIC is disposed on a first surface (e.g., bottom surface) of the printed circuit board, or adjacent to the first surface and capable of supporting a specified high frequency band (e.g., millimeter wave band), and the plurality of antennas are disposed on a second surface (e.g., top surface or side surface) of the printed circuit board, or adjacent to the second surface and capable of transmitting or receiving signals of the specified high frequency band.

[0102] At least some of the above components may be connected to each other via an inter-peripheral communication scheme (e.g., a bus, a general purpose input output (GPIO), a serial peripheral interface (SPI), or a mobile industry processor interface (MIPI)) and communicatively transmit signals (e.g., commands or data) therebetween.

[0103] According to an embodiment, a command or data may be sent or received between the electronic device 101 and the external electronic device 104 via the server 108 connected to the second network 199. Each of the electronic device 102 or the electronic device 104 may be a device of the same type as the electronic device 101, or a device of a different type from the electronic device 101. According to an embodiment, all or some operations to be executed in the electronic device 101 may be executed in one or more of the external electronic device 102, the external electronic device 104, or the server 108. For example, if the electronic device 101 should automatically execute a function or service or should execute a function or service in response to a request from a user or another device, the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service instead of executing the function or service, or the electronic device 101 may request the one or more external electronic devices to execute at least part of the function or service in addition to executing the function or service. The one or more external electronic devices receiving the request may execute at least part of the function or service requested, or execute another function or another service related to the request, and transmit the result of the execution to the electronic device 101. The electronic device 101 may provide the result as at least a partial reply to the request in the case of further processing the result or without further processing the result. To this end, cloud computing technology, distributed computing technology, mobile edge computing (MEC) technology or client-server computing technology, for example, may be used. The electronic device 101 may use, for example, distributed computing or mobile edge computing to provide ultra-low latency services. In another embodiment, the external electronic device 104 may include an Internet of Things (IoT) device. The server 108 may be an intelligent server using machine learning and / or neural networks. According to an embodiment, the external electronic device 104 or the server 108 may be included in the second network 199. The electronic device 101 may be applied to intelligent services (e.g., smart homes, smart cities, smart cars or health care) based on 5G communication technology or IoT-related technologies.

[0104] The electronic device according to various embodiments may be one of various types of electronic devices. The electronic device may include, for example, a portable communication device (e.g., a smart phone), a computer device, a portable multimedia device, a portable medical device, a camera, a wearable device, or a household appliance. According to an embodiment of the present disclosure, the electronic device is not limited to those electronic devices described above.

[0105] It should be understood that the various embodiments of the present disclosure and the terms used therein are not intended to limit the technical features set forth herein to specific embodiments, but include various changes, equivalent forms or alternative forms for corresponding embodiments. For the description of the accompanying drawings, similar reference numerals may be used to refer to similar or related elements. It will be understood that the nouns in the singular form corresponding to the term may include one or more things unless the relevant context clearly indicates otherwise. As used herein, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C" and "at least one of A, B or C" may include any one or all possible combinations of the items listed together with the corresponding one of the multiple phrases. As used herein, terms such as "1st" and "2nd" or "first" and "second" may be used to simply distinguish the corresponding component from another component, and do not limit the component in other aspects (e.g., importance or order). It will be understood that if an element (e.g., a first element) is referred to as being “combined with another element (e.g., the second element)”, “combined to another element (e.g., the second element)”, “connected with another element (e.g., the second element)”, or “connected to another element (e.g., the second element)” when the terms “operably” or “communicatively” are used or when the terms “operably” or “communicatively” are not used, it means that the element may be directly (e.g., wired) connected to the other element, wirelessly connected to the other element, or connected to the other element via a third element.

[0106] As used in connection with various embodiments of the present disclosure, the term "module" may include units implemented in hardware, software, or firmware, and may be used interchangeably with other terms (e.g., "logic," "logic block," "portion," or "circuit"). A module may be a single integrated component adapted to perform one or more functions or a minimum unit or portion of the single integrated component. For example, depending on the embodiment, a module may be implemented in the form of an application specific integrated circuit (ASIC).

[0107] The various embodiments described herein may be implemented as software (e.g., program 140) including one or more instructions stored in a storage medium (e.g., internal memory 136 or external memory 138) that can be read by a machine (e.g., electronic device 101). For example, under the control of a processor, a processor (e.g., processor 120) of the machine (e.g., electronic device 101) may call at least one of the one or more instructions stored in the storage medium and execute the at least one instruction with or without the use of one or more other components. This enables the machine to operate to perform at least one function according to the at least one instruction called. The one or more instructions may include code generated by a compiler or code that can be run by an interpreter. A machine-readable storage medium may be provided in the form of a non-transitory storage medium. Among them, the term "non-transitory" only means that the storage medium is a tangible device and does not include signals (e.g., electromagnetic waves), but the term does not distinguish between data being semi-permanently stored in the storage medium and data being temporarily stored in the storage medium.

[0108] According to the implementation, the methods according to various implementations of the present disclosure may be included and provided in a computer program product. The computer program product may be traded between a seller and a buyer as a product. The computer program product may be released in the form of a machine-readable storage medium (e.g., a compact disk read-only memory (CD-ROM)), or may be downloaded via an application store (e.g., Play Store TM ) The computer program product may be published (e.g., downloaded or uploaded) online, or the computer program product may be distributed (e.g., downloaded or uploaded) directly between two user devices (e.g., smart phones). If published online, at least part of the computer program product may be temporarily generated, or at least part of the computer program product may be at least temporarily stored in a machine-readable storage medium (such as a memory of a manufacturer's server, an application store's server, or a forwarding server).

[0109] According to various embodiments, each component (e.g., module or program) in the above-mentioned components may include a single entity or multiple entities, and some entities in the multiple entities may be detachably arranged in different components. According to various embodiments, one or more components in the above-mentioned components may be omitted, or one or more other components may be added. Alternatively or additionally, multiple components (e.g., module or program) may be integrated into a single component. In this case, according to various embodiments, the integrated component may still perform the one or more functions of each component in the multiple components in the same or similar manner as a corresponding component in the multiple components before integration. According to various embodiments, the operations performed by a module, program or another component may be performed sequentially, in parallel, repeatedly or in a heuristic manner, or one or more operations in the operations may be run or omitted in different orders, or one or more other operations may be added.

[0110] According to an embodiment of the present disclosure, the electronic device 1 may include a lens barrel 20 and a lens assembly 10, the lens assembly 10 having a plurality of lenses (e.g., L1, L2, L3, and L4) arranged along the optical axis direction from the object side toward the image side, at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 1].

[0111] [Formula 1]

[0112] H1 / H2>0.5.

[0113] (In [Formula 1], H1 represents the height from the start point of the non-effective diameter to the start point of the lens installation surface, and H2 represents the height from the start point of the non-effective diameter to the portion in contact with the inner surface of the lens barrel.)

[0114] According to one embodiment, the starting point of the non-effective diameter may include a first starting point P1 of the object side surface S5 of the lens L3 and a second starting point P2 of the image side surface S6 of the lens, and H1 and H2 in [Formula 1] may represent the height measured from the second starting point of the image side surface of the lens.

[0115] According to one embodiment, the mounting surface may include a first mounting surface L3a of the object side surface S5 of the lens L3 and a second mounting surface L3b of the image side surface S6 of the lens, and H1 in [Formula 1] may represent the height of the second mounting surface measured to the image side surface of the lens.

[0116] According to one embodiment, at least one of the plurality of lenses included in the lens assembly may satisfy the following [Formula 2],

[0117] [Formula 2]

[0118] H2 / D1≥0.23.

[0119] (In [Formula 2], H2 represents the height from the start point of the non-effective diameter to the portion in contact with the inner surface of the lens barrel, and D1 represents the depth from the start point of the non-effective diameter to the start point of the seating surface.)

[0120] According to one embodiment, the mounting surface may include a first mounting surface of the object side surface of the lens and a second mounting surface of the image side surface of the lens, and in [Formula 2], D1 may represent the depth measured from the second mounting surface of the image side surface of the lens.

[0121] According to one embodiment, at least one of the plurality of lenses included in the lens assembly may satisfy the following [Formula 3].

[0122] [Formula 3]

[0123] D3 / D2>1.65.

[0124] (In [Formula 3], D2 represents the thickness between the starting point of the non-effective diameter and the mounting surface of the lens, and D3 represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens.)

[0125] According to one embodiment, at least one of the plurality of lenses included in the lens assembly may include a rib having a shape of a first seating surface extending from a start point of a non-effective diameter to an inner surface of the lens barrel and a surface facing an object side of an adjacent lens.

[0126] According to one embodiment, among a plurality of lenses included in the lens assembly, the lens including the rib may be a lens disposed between a first lens (eg, L1) closest to the object side and a last lens (eg, L4) farthest from the object side.

[0127] According to an embodiment, the lens including the rib may include at least one structure of a groove, a protrusion, an inclined surface, a curved surface, and a step on at least one of a surface facing the object side and a surface facing the image side.

[0128] According to an embodiment, the lens including the ribs may be configured such that an angle of a surface facing the image side relative to an angle of a surface facing the object side has an angle of 10 degrees or less.

[0129] According to an embodiment, the lens including the ribs may be configured to have a coating surface formed on a surface facing the object side or a surface facing the image side.

[0130] According to one embodiment, the lens assembly may include at least three lenses.

[0131] According to one embodiment of the present disclosure, the electronic device 1 may include a lens barrel 20 and a lens assembly 10, the lens assembly 10 having a plurality of lenses arranged from the object side toward the image side along the optical axis direction, and at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 2].

[0132] [Formula 2]

[0133] H2 / D1≥0.23.

[0134] (In [Formula 2], H2 represents the height from the start point of the non-effective diameter to the portion in contact with the inner surface of the lens barrel, and D1 represents the depth from the start point of the non-effective diameter to the start point of the lens mounting surface.)

[0135] According to one embodiment, the mounting surface may include a first mounting surface of the object side surface of the lens and a second mounting surface of the image side surface of the lens, and D1 in [Formula 2] may represent a depth measured from the second mounting surface of the image side surface of the lens.

[0136] According to one embodiment, at least one of a plurality of lenses included in the lens assembly may satisfy the following [Formula 1].

[0137] [Formula 1]

[0138] H1 / H2>0.5.

[0139] (In [Formula 1], H1 represents the height from the start point of the non-effective diameter to the start point of the mounting surface, and H2 represents the height from the start point of the non-effective diameter to the portion in contact with the inner surface of the lens barrel.)

[0140] According to one embodiment, the starting point of the non-effective diameter may include a first starting point of the object side surface of the lens and a second starting point of the image side surface of the lens, and H1 and H2 in [Formula 1] may represent the height measured from the second starting point of the image side surface of the lens.

[0141] According to one embodiment, the mounting surface may include a first mounting surface of the object side surface of the lens and a second mounting surface of the image side surface of the lens, and H1 in [Formula 1] may represent a depth measured from the second mounting surface of the image side surface of the lens.

[0142] According to one embodiment, at least one of the plurality of lenses included in the lens assembly may satisfy the following [Formula 3].

[0143] [Formula 3]

[0144] D3 / D2>1.65.

[0145] (In [Formula 3], D2 represents the thickness between the starting point of the non-effective diameter and the mounting surface of the lens, and D3 represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens.)

[0146] According to an embodiment of the present disclosure, the electronic device may include a lens barrel 20 and a lens assembly 10 having a plurality of lenses arranged from the object side toward the image side along the optical axis direction, at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 3].

[0147] [Formula 3]

[0148] D3 / D2>1.65.

[0149] (In [Formula 3], D2 represents the thickness between the starting point of the non-effective diameter and the mounting surface of the lens, and D3 represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens.)

[0150] According to an embodiment, the lens satisfying [Formula 3] may include at least one structure of a groove, a protrusion, an inclined surface, a curved surface, and a step on at least one of a surface facing the object side and a surface facing the image side.

[0151] In a first example, an optical device is provided, the optical device including: a lens assembly having a plurality of lenses arranged from an object side to an image side along an optical axis direction; and a lens barrel configured to at least partially surround the lens assembly, wherein at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 1],

[0152] [Formula 1]

[0153] H1 / H2>0.5,

[0154] Among them, "H1" represents the height from the starting point of the ineffective diameter of the lens to the starting point of the installation surface of the lens, and "H2" represents the height from the starting point of the ineffective diameter of the lens to the portion of the lens that contacts the inner surface of the lens barrel.

[0155] In a second example, an optical device of the first example is provided, wherein the starting point of the non-effective diameter includes a first starting point of the object side surface of the lens and a second starting point of the image side surface of the lens, and H1 and H2 in [Formula 1] represent heights measured from the second starting point of the image side surface of the lens.

[0156] In a third example, an optical device of the first example or the second example is provided, wherein the mounting surface includes a first mounting surface of the object side surface of the lens and a second mounting surface of the image side surface of the lens, and H1 in [Formula 1] represents the height of the second mounting surface measured to the image side surface of the lens.

[0157] In a fourth example, an optical device of any of the foregoing examples is provided, wherein at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 2],

[0158] [Formula 2]

[0159] H2 / D1≥0.23,

[0160] Among them, "H2" represents the height from the starting point of the ineffective diameter of the lens to the portion in contact with the inner surface of the lens barrel, and "D1" represents the depth from the starting point of the ineffective diameter of the lens to the starting point of the installation surface of the lens.

[0161] In a fifth example, an optical device of the fourth example is provided, wherein the mounting surface includes a first mounting surface of the object side surface of the lens and a second mounting surface of the image side surface of the lens, and D1 in [Formula 2] represents the depth measured to the second mounting surface of the image side surface of the lens.

[0162] In a sixth example, there is provided the optical device of the fourth or fifth example, wherein at least one lens satisfying [Formula 2] is at least one lens satisfying [Formula 1].

[0163] In a seventh example, an optical device of any of the preceding examples is provided, wherein at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 3],

[0164] [Formula 3]

[0165] D3 / D2>1.65,

[0166] Among them, "D2" represents the thickness between the starting point of the non-effective diameter of the lens and the mounting surface of the lens, and "D3" represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens.

[0167] In an eighth example, there is provided the optical device of the seventh example, wherein the at least one lens satisfying [Formula 3] is the at least one lens satisfying [Formula 1].

[0168] In a ninth example, there is provided the optical device of the seventh or eighth example, which includes the features of the fifth or sixth example, wherein the at least one lens satisfying [Formula 3] is the at least one lens satisfying [Formula 2].

[0169] In a tenth example, an optical device of any of the preceding examples is provided, wherein at least one lens satisfying [Formula 1] includes a rib having the following shape: a first mounting surface extending from a starting point of a non-effective diameter to an inner surface of a lens barrel and a surface facing the object side of an adjacent lens.

[0170] In an eleventh example, an optical device of any of the preceding examples is provided, wherein, among a plurality of lenses included in the lens assembly, the at least one lens satisfying [Formula 1] is a lens disposed between a first lens closest to the object side and a last lens farthest from the object side.

[0171] In a twelfth example, an optical device of any of the preceding examples is provided, wherein the at least one lens satisfying [Formula 1] includes at least one structure of a groove, a protrusion, an inclined surface, a curved surface, and a step on at least one of the surfaces facing the object side and the surfaces facing the image side.

[0172] In a thirteenth example, an optical device of any of the preceding examples is provided, wherein the at least one lens satisfying [Formula 1] is configured so that an angle of a surface facing the image side relative to a surface facing the object side has an angle of 10 degrees or less.

[0173] In a fourteenth example, there is provided the optical device of any of the aforementioned examples, wherein the at least one lens satisfying [Formula 1] is configured to have a coating surface formed on a surface facing the object side or a surface facing the image side.

[0174] In a fifteenth example, an optical device of any preceding example is provided, wherein the lens assembly includes at least three lenses.

[0175] In a sixteenth example, an optical device is provided, the optical device including: a lens assembly having a plurality of lenses arranged along an optical axis direction from an object side toward an image side; and a lens barrel configured to at least partially surround the lens assembly, wherein at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 2],

[0176] [Formula 2]

[0177] H2 / D1≥0.23,

[0178] Among them, "H2" represents the height from the starting point of the ineffective diameter of the lens to the portion in contact with the inner surface of the lens barrel, and "D1" represents the depth from the starting point of the ineffective diameter of the lens to the starting point of the installation surface of the lens.

[0179] In a seventeenth example, an optical device of the sixteenth example is provided, wherein the mounting surface includes a first mounting surface of the object side surface of the lens and a second mounting surface of the image side surface of the lens, and D1 in [Formula 2] represents the depth measured to the second mounting surface of the image side surface of the lens.

[0180] In an eighteenth example, there is provided the optical device of the sixteenth or seventeenth example, wherein at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 3],

[0181] [Formula 3]

[0182] D3 / D2>1.65,

[0183] Wherein "D2" represents the thickness between the starting point of the non-effective diameter and the mounting surface of the lens, and "D3" represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens.

[0184] In a nineteenth example, there is provided the optical device of the eighteenth example, wherein the at least one lens satisfying [Formula 3] is the at least one lens satisfying [Formula 2].

[0185] In a twentieth example, an optical device of any one of the sixteenth to nineteenth examples is provided, wherein at least one lens satisfying [Formula 2] includes a rib having the following shape: a first mounting surface extending from a starting point of a non-effective diameter to an inner surface of a lens barrel and a surface facing the object side of an adjacent lens.

[0186] In a twenty-first example, an optical device of any one of the sixteenth to twentieth examples is provided, wherein among a plurality of lenses included in the lens assembly, the at least one lens satisfying [Formula 2] is a lens arranged between a first lens closest to the object side and a last lens farthest from the object side.

[0187] In a twenty-second example, an optical device of any one of examples sixteen to twenty-first is provided, wherein the at least one lens satisfying [Formula 2] includes at least one structure of a groove, a protrusion, an inclined surface, a curved surface, and a step on at least one of the surfaces facing the object side and the surfaces facing the image side.

[0188] In a twenty-third example, an optical device of any one of the sixteenth to twenty-second examples is provided, wherein the at least one lens satisfying [Formula 2] is configured so that an angle of a surface facing the image side relative to a surface facing the object side has an angle of 10 degrees or less.

[0189] In a twenty-fourth example, there is provided the optical device of any one of the sixteenth to twenty-third examples, wherein the at least one lens satisfying [Formula 2] is configured to have a coating surface formed on a surface facing the object side or a surface facing the image side.

[0190] In a twenty-fifth example, the optical device of any one of the sixteenth to twenty-fourth examples is provided, wherein the lens assembly includes at least three lenses.

[0191] In a twenty-sixth example, an optical device is provided, the optical device including: a lens assembly having a plurality of lenses arranged along an optical axis direction from an object side toward an image side; and a lens barrel configured to at least partially surround the lens assembly, wherein at least one of the plurality of lenses included in the lens assembly satisfies the following [Formula 3],

[0192] [Formula 3]

[0193] D3 / D2>1.65,

[0194] Wherein "D2" represents the thickness between the starting point of the non-effective diameter of the lens and the mounting surface of the lens, and "D3" represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens.

[0195] In a twenty-seventh example, an optical device of the twenty-sixth example is provided, wherein at least one lens satisfying [Formula 3] includes a rib having the following shape: a first mounting surface extending from a starting point of a non-effective diameter to an inner surface of the lens barrel and a surface facing the object side of an adjacent lens.

[0196] In a twenty-eighth example, an optical device of the twenty-sixth or twenty-seventh example is provided, wherein among a plurality of lenses included in the lens assembly, the at least one lens that satisfies [Formula 3] is a lens arranged between a first lens closest to the object side and a last lens farthest from the object side.

[0197] In a twenty-ninth example, an optical device of any one of Examples twenty-six to twenty-eight is provided, wherein the at least one lens satisfying [Formula 3] includes at least one structure of a groove, a protrusion, an inclined surface, a curved surface, and a step on at least one of the surfaces facing the object side and the surfaces facing the image side.

[0198] In a thirtieth example, an optical device of any one of the twenty-sixth to twenty-ninth examples is provided, wherein the at least one lens satisfying [Formula 3] is configured so that the angle of the surface facing the image side relative to the surface facing the object side has an angle of 10 degrees or less.

[0199] In a thirty-first example, the optical device of any one of the twenty-sixth to thirtieth examples is provided, wherein the at least one lens satisfying [Formula 1] is configured to have a coating surface formed on a surface facing the object side or a surface facing the image side.

[0200] In a thirty-second example, the optical device of any one of the twenty-sixth to thirty-first examples is provided, wherein the lens assembly includes at least three lenses.

[0201] In a thirty-third example, an electronic device is provided, the electronic device comprising the optical device of any of the preceding examples.

[0202] In the above description, although specific embodiments are described in the detailed description of the embodiments of the present disclosure, it will be apparent to those skilled in the art that various changes within the scope are possible without departing from the gist of the present disclosure. For example, in a specific embodiment of the present disclosure, the shapes, sizes, etc. of the multiple lenses can be appropriately configured according to the structure, requirements, actual use environment, etc. of the lens assembly actually manufactured or the electronic device to which the lens assembly will be installed.

Claims

1. An optical device, comprising: A lens assembly (10) comprises a plurality of lenses arranged along an optical axis from an object side toward an image side; as well as a lens barrel (20) configured to at least partially surround the lens assembly, Wherein, at least one lens among the plurality of lenses included in the lens assembly satisfies the following [Formula 1], [Formula 1] H1 / H2>0.5, Among them, H1 represents the height from the starting point of the ineffective diameter of the lens to the starting point of the mounting surface of the lens, and H2 represents the height from the starting point of the ineffective diameter of the lens to the part of the lens that contacts the inner surface of the lens barrel.

2. The optical device according to claim 1, wherein: The starting point of the non-effective diameter includes a first starting point of the object side surface of the lens and a second starting point of the image side surface of the lens, and H1 and H2 in [Formula 1] represent heights measured from the second starting point of the image side surface of the lens.

3. The optical device according to claim 1 or 2, wherein: The mounting surface includes a first mounting surface of the object side surface of the lens and a second mounting surface of the image side surface of the lens, and H1 in [Formula 1] represents a height of the second mounting surface measured to the image side surface of the lens.

4. The optical device according to any one of claims 1 to 3, wherein: At least one lens among the plurality of lenses included in the lens assembly satisfies the following [Formula 2], [Formula 2] H2 / D1≥0.23, Among them, H2 represents the height from the starting point of the ineffective diameter of the lens to the part of the lens in contact with the inner surface of the lens barrel, and D1 represents the depth from the starting point of the ineffective diameter of the lens to the starting point of the mounting surface of the lens.

5. The optical device according to claim 4, wherein: The mounting surface includes a first mounting surface of the object side surface of the lens and a second mounting surface of the image side surface of the lens, and D1 in [Formula 2] represents a depth measured to the second mounting surface of the image side surface of the lens.

6. The optical device according to any one of claims 1 to 5, wherein: At least one lens among the plurality of lenses included in the lens assembly satisfies the following [Formula 3], [Formula 3] D3 / D2>1.65, Wherein, D2 represents the thickness between the starting point of the non-effective diameter of the lens and the mounting surface of the lens, and D3 represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens.

7. The optical device according to any one of claims 1 to 6, wherein: The at least one lens among the plurality of lenses includes a rib having a shape of the first seating surface extending from the starting point of the non-effective diameter of the at least one lens to the inner surface of the lens barrel and a surface facing the object side of an adjacent lens.

8. An optical device according to any one of claims 1 to 7, wherein among the plurality of lenses included in the lens assembly, the at least one lens satisfying [Formula 1] is a lens arranged between a first lens closest to the object side and a last lens farthest from the object side.

9. The optical device according to any one of claims 1 to 8, wherein: The at least one lens satisfying [Formula 1] includes at least one structure of a groove, a protrusion, an inclined surface, a curved surface, and a step on at least one of the surface facing the object side and the surface facing the image side.

10. The optical device according to any one of claims 1 to 9, wherein: The at least one lens satisfying [Formula 1] is configured so that an angle of the surface facing the image side relative to an angle of the surface facing the object side has an angle of 10 degrees or less.

11. The optical device according to any one of claims 1 to 10, wherein: The at least one lens satisfying [Formula 1] is configured to have a coating surface formed on the surface facing the object side or the surface facing the image side.

12. The optical device according to any one of claims 1 to 11, wherein: The lens assembly includes at least three lenses.

13. An optical device (1), comprising: A lens assembly (10) comprises a plurality of lenses arranged along an optical axis from an object side toward an image side; as well as a lens barrel (20) configured to at least partially surround the lens assembly, Wherein, at least one lens among the plurality of lenses included in the lens assembly satisfies the following [Formula 2], [Formula 2] H2 / D1≥0.23, Among them, H2 represents the height from the starting point of the ineffective diameter of the lens to the portion of the lens in contact with the inner surface of the lens barrel, and D1 represents the depth from the starting point of the ineffective diameter of the lens to the starting point of the mounting surface of the lens.

14. An optical device (1), comprising: A lens assembly (10) comprises a plurality of lenses arranged along an optical axis from an object side toward an image side; as well as a lens barrel (20) configured to at least partially surround the lens assembly, Wherein, at least one lens among the plurality of lenses included in the lens assembly satisfies the following [Formula 3], [Formula 3] D3 / D2>1.65, Wherein, D2 represents the thickness between the starting point of the ineffective diameter of the lens and the mounting surface of the lens, and D3 represents the thickness between the first mounting surface of the object side surface of the lens and the second mounting surface of the image side surface of the lens.

15. An electronic device (1) comprising the optical device according to any one of claims 1 to 14.

Images